Scroll compressor and air conditioner

Abstract

The present invention discloses a scroll compressor and an air conditioner, the scroll compressor includes a shell, an electrostatic separation component and a lubricated element, the shell is provided with an air inlet for a mixture of refrigerant and lubricating oil to enter, the air inlet is provided with an ionization channel, the ionization channel is used to ionize the mixture so that the oil particles in the lubricating oil carry positive or negative charges; the lubricated element is arranged in the shell; the electrostatic separation component includes a lubrication channel and an electric oil collector, the lubrication channel is connected to the lubricated element, the electric oil collector is arranged in the lubrication channel, the electric oil collector is used to adsorb charged oil particles, and the oil particles flow to the lubricated element through the lubrication channel. The present invention utilizes the electric oil collector to adsorb charged oil particles in the mixture, and when the oil particles accumulate to a sufficient number, they will flow along the lubrication channel to the lubricated element for lubrication, thereby achieving separation of the refrigerant and the lubricating oil, thereby reducing the oil content of the exhaust gas.

Description

Technical Field

[0001] The invention relates to the field of compressor processing, and in particular to a scroll compressor and an air conditioner. Background Art

[0002] In refrigeration and air-conditioning systems, scroll compressors are core components, and their operating efficiency and stability are directly related to the performance of the entire system. During the operation of existing scroll compressors, in order to ensure the smooth operation of each friction pair and rolling pair, it is necessary to continuously supply lubricating oil to achieve effective lubrication, reduce friction loss, prevent component wear, and remove the heat generated by friction through the circulation of lubricating oil. At the same time, a protective film is formed on the sealing part to enhance the sealing. However, although lubricating oil plays an important role in lubrication, cooling, shock absorption, wear reduction, rust and corrosion prevention, its content control has become one of the key factors restricting the performance improvement of scroll compressors. At present, oil separators are generally used to perform cyclone separation on compressor exhaust to reduce the lubricating oil content in the exhaust. However, in actual applications, even after oil and gas separation, the amount of lubricating oil residue in the exhaust is still high. This part of the excess lubricating oil flows with the compressed gas to the condenser and evaporator and is deposited on their surface, which not only hinders the heat exchange efficiency, but also increases the maintenance cost of the system and reduces the overall working efficiency and service life of the air-conditioning system. Summary of the invention

[0003] The embodiments of the present invention provide a scroll compressor and an air conditioner, aiming to solve the problem of high exhaust oil content of the existing scroll compressor.

[0004] The present invention provides a scroll compressor, comprising

[0005] The housing is provided with an air inlet for the mixture of refrigerant and lubricating oil to enter, and the air inlet is provided with an ionization channel, and the ionization channel is used to ionize the mixture so that the oil particles in the lubricating oil carry positive or negative charges;

[0006] A component to be lubricated is disposed in the housing;

[0007] The electrostatic separation component comprises a lubrication channel and an electric oil collector, wherein the lubrication channel is connected to the element to be lubricated, the electric oil collector is arranged in the lubrication channel, and the electric oil collector is used to absorb charged oil particles, and the oil particles flow to the element to be lubricated through the lubrication channel.

[0008] The scroll compressor provided by the present invention further comprises a support assembly, wherein the support assembly comprises a support and a main bearing, wherein a main bearing chamber is provided on the support, wherein the main bearing is provided in the main bearing chamber, and wherein the element to be lubricated comprises the main bearing;

[0009] The lubrication channel includes a first lubrication channel arranged on the bracket, the first lubrication channel is connected to the main bearing chamber, the electric oil collector includes a first electric oil collector arranged on the first lubrication channel, the first electric oil collector is used to absorb charged oil particles, and the oil particles flow to the main bearing chamber through the first lubrication channel.

[0010] In the scroll compressor provided by the present invention, the first oil collecting part includes a first positive oil collecting portion and a first negative oil collecting portion, and the first positive oil collecting portion and the first negative oil collecting portion are arranged opposite to each other with a gap, wherein the first positive oil collecting portion is configured to absorb oil particles carrying negative charges, and the first negative oil collecting portion is configured to absorb oil particles carrying positive charges.

[0011] In the scroll compressor provided by the present invention, the bracket includes a bracket upper plate and a bracket lower plate, the bracket upper plate and the bracket lower plate are arranged in an upper and lower interval, the first lubrication channel is formed between the bracket upper plate and the bracket lower plate, the first lubrication channel includes a first upper lubrication channel arranged on the bracket upper plate and a first lower lubrication channel arranged on the bracket lower plate, the first upper lubrication channel and the first lower lubrication channel are both connected to the main bearing chamber; wherein, one of the first positive oil collecting portion and the first negative oil collecting portion is arranged in the first upper lubrication channel, and the other is arranged in the first lower lubrication channel.

[0012] In the scroll compressor provided by the present invention, the first upper lubrication passage comprises a first upper mounting groove and a first upper oil guide passage, the two ends of the first upper oil guide passage are respectively connected to the first upper mounting groove and the main bearing chamber, the first upper mounting groove is recessed upward from the lower end surface of the bracket upper plate, and the first positive oil collecting portion or the first negative oil collecting portion is arranged in the first upper mounting groove; and / or,

[0013] The first lower lubrication channel includes a first lower mounting groove and a first lower oil guide channel, both ends of the first lower oil guide channel are respectively connected to the first lower mounting groove and the main bearing chamber, the first lower mounting groove is recessed downward from the upper end surface of the lower plate of the bracket, and the first positive oil collecting portion or the first negative oil collecting portion is arranged in the first lower mounting groove.

[0014] The scroll compressor provided by the present invention further comprises a crankshaft, a rotor assembly, a balancing block and a secondary bearing, wherein the crankshaft passes through the rotor assembly and the secondary bearing, the balancing block is arranged between the rotor assembly and the secondary bearing, and the element to be lubricated comprises the secondary bearing;

[0015] The lubrication channel includes a second lubrication channel arranged on the balance block and a third lubrication channel arranged on the crankshaft, the second lubrication channel is connected to the third lubrication channel, the outlet of the third lubrication channel faces the secondary bearing, the electric oil collector includes a second electric oil collector arranged in the second lubrication channel, the second electric oil collector is used to absorb charged oil particles, and the oil particles flow to the secondary bearing through the second lubrication channel and the third lubrication channel.

[0016] In the scroll compressor provided by the present invention, the second oil collecting part includes a second positive oil collecting portion and a second negative oil collecting portion, and the second positive oil collecting portion and the second negative oil collecting portion are arranged opposite to each other with a gap, wherein the second positive oil collecting portion is configured to absorb oil particles carrying negative charges, and the second negative oil collecting portion is configured to absorb oil particles carrying positive charges.

[0017] In the scroll compressor provided by the present invention, the balance block includes an upper balance block and a lower balance block, the upper balance block and the lower balance block are arranged with an upper and lower interval, the second lubrication channel is formed between the upper balance block and the lower balance block, the second lubrication channel includes a second upper lubrication channel arranged on the upper balance block and a second lower lubrication channel arranged on the lower balance block, the second upper lubrication channel and the second lower lubrication channel are both connected to the third lubrication channel; wherein, one of the second positive oil collecting portion and the second negative oil collecting portion is arranged in the second upper lubrication channel, and the other is arranged in the second lower lubrication channel.

[0018] In the scroll compressor provided by the present invention, the second upper lubrication passage comprises a second upper mounting groove and an upper oil guide hole, the two ends of the upper oil guide hole are respectively connected to the second upper mounting groove and the third lubrication passage, the second upper mounting groove is recessed upward from the lower end surface of the upper balancing block, and the second positive oil collecting portion or the second negative oil collecting portion is arranged in the second upper mounting groove; and / or,

[0019] The second lower lubrication channel includes a second lower mounting groove and a lower oil guide hole, both ends of the lower oil guide hole are respectively connected to the second lower mounting groove and the third lubrication channel, the second lower mounting groove is recessed downward from the upper end surface of the lower balance block, and the second positive oil collecting portion or the second negative oil collecting portion is arranged in the second lower mounting groove.

[0020] In the scroll compressor provided by the present invention, the third lubrication channel includes a first radial connecting flow channel, a second radial connecting flow channel, an axial oil guide channel and a radial oil outlet channel. The axial oil guide channel is opened along the axial direction of the crankshaft. The first radial connecting flow channel extends along the radial direction of the crankshaft and its two ends are respectively connected to the axial oil guide channel and the upper oil guide hole. The second radial connecting flow channel extends along the radial direction of the crankshaft and its two ends are respectively connected to the axial oil guide channel and the lower oil guide hole. The radial oil outlet channel extends along the radial direction of the crankshaft, and one end is connected to the axial oil guide channel, and the other end radially penetrates the outer wall of the crankshaft to form the outlet of the third lubrication channel.

[0021] The present invention also provides an air conditioner, comprising the scroll compressor.

[0022] The present invention provides a scroll compressor and an air conditioner. The scroll compressor comprises a shell, an electrostatic separation component and a lubricated element. An ionization channel is arranged on the air inlet of the shell, which can ionize a mixture of a refrigerant and a lubricating oil so that oil particles in the lubricating oil are charged. The electrostatic separation component comprises a lubrication channel and an electric oil collecting member. The lubrication channel is connected to the lubricated element. The electric oil collecting member is arranged in the lubrication channel. The electric oil collecting member can absorb the charged oil particles in the mixture. When the oil particles accumulate to a sufficient amount, they will flow along the lubrication channel to the lubricated element for lubrication, thereby realizing the separation of the refrigerant and the lubricating oil, thereby reducing the oil content of the exhaust gas, while enhancing the lubrication effect of the compressor itself, and improving the operating performance and service life of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0024] Figure 1 A cross-sectional schematic diagram of a scroll compressor according to an embodiment of the present invention is shown;

[0025] Figure 2 Shown Figure 1 A magnified view of part A;

[0026] Figure 3 A schematic diagram showing a support assembly of a scroll compressor according to an embodiment of the present invention;

[0027] Figure 4 A cross-sectional schematic diagram of a support assembly of a scroll compressor according to an embodiment of the present invention is shown;

[0028] Figure 5 Shown Figure 4 A magnified view of part B;

[0029] Figure 6 A schematic diagram showing an upper balancing block of a scroll compressor according to an embodiment of the present invention is shown;

[0030] Figure 7 A schematic diagram showing a lower balancing block of a scroll compressor according to an embodiment of the present invention is shown;

[0031] Figure 8 A schematic diagram showing a crankshaft of a scroll compressor according to an embodiment of the present invention is shown; Description of the drawings:

[0033] 1. Shell; 11. Air inlet; 12. Ionization channel; 2. Rotor assembly; 21. Upper balancing block; 211. Second upper lubrication channel; 211a. Second upper mounting groove; 211b. Upper oil guide hole; 212. Upper main flow groove; 213. Upper secondary flow groove; 214. Second positive oil collecting part; 22. Lower balancing block; 221. Second lower lubrication channel; 221a. Second lower mounting groove; 221b. Lower oil guide hole; 222. Lower main flow groove; 223. Lower secondary flow groove; 224. Second negative oil collecting part; 23. Secondary bearing; 3. Crankshaft; 31. First radial connecting flow channel; 32. Second radial connecting flow channel; 33 , axial guide oil channel; 34, radial oil outlet channel; 35, plug; 4, bracket assembly; 41, bracket; 411, bracket upper plate; 4111, first upper lubrication channel; 4111a, first upper mounting groove; 4111b, first upper oil guide channel; 4112, first positive oil collecting section; 412, bracket lower plate; 4121, first lower lubrication channel; 4121a, first lower mounting groove; 4121b, first lower oil guide channel; 4122, first negative oil collecting section; 413, main bearing chamber; 42, main bearing; 5, moving disk assembly; 6, stationary disk assembly; 7, exhaust cover assembly; 71, exhaust cover; 72, oil separator; 73, exhaust port. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention. In addition, in the drawings, structures with similar or identical structures are represented by the same reference numerals.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] Reference Figure 1-Figure 8 An embodiment of the present invention provides a scroll compressor, comprising: a shell 1, a component to be lubricated and an electrostatic separation component, the shell 1 being provided with an air inlet 11 for a mixture of refrigerant and lubricating oil to enter, the air inlet 11 being provided with an ionization channel 12, the ionization channel 12 being used to ionize the mixture so that the oil particles in the lubricating oil carry positive or negative charges; the component to be lubricated being arranged in the shell 1; the electrostatic separation component comprising a lubrication channel and an electric oil collector, the lubrication channel being connected to the component to be lubricated, the electric oil collector being arranged in the lubrication channel, the electric oil collector being used to adsorb charged oil particles, and the oil particles flowing to the component to be lubricated through the lubrication channel.

[0038] Reference Figure 1 and Figure 2Specifically, the housing 1 is the outer shell of the scroll compressor, and a charged tungsten wire is provided at the air inlet 11, so that an ionization channel 12 is formed at the air inlet 11, and the mixture of the refrigerant and the lubricating oil is ionized through the ionization channel 12, so that the oil particles of the lubricating oil in the mixture are charged. The reason why the charged tungsten wire charges the oil particles is mainly through electrostatic induction or direct contact charging. When the tungsten wire is charged, the mixture approaches the charged tungsten wire when passing through the air inlet 11. The charged tungsten wire can cause the redistribution of the surface charge of these oil particles, that is, electrostatic induction; or through direct contact, the charge is transferred to these oil particles, so that they are positively or negatively charged. It should be noted that after the refrigerant and oil mixture passes through, only the oil particles will be ionized and carry positive or negative charges, and the refrigerant will not be charged because it is a pure substance, that is, after the mixture passes through the ionization channel 12, only the oil particles will be charged and the refrigerant will not be charged. The element to be lubricated can be any component in the housing 1, for example, the main bearing 42 or the auxiliary bearing 23 or other components, which are not limited here. The electrostatic separation component is arranged in the housing 1, and is used to separate the lubricating oil and the refrigerant by electrostatic separation of the ionized mixture. Specifically, the electrostatic separation component includes a lubrication channel and an electric oil collector. The lubrication channel can be an independent component, or it can be arranged on other components adjacent to the element to be lubricated in the housing 1, for example, a bracket, a balance block, etc., which are not limited here. The electric oil collector is arranged in the lubrication channel, and the ionized mixture enters into the shell 1 and fills the entire shell 1. Part of the ionized mixture enters into the lubrication channel and is adsorbed and collected by the electric oil collector. The electric oil collector can generate an electric field, and can adsorb charged oil particles under the action of the electric field force. Since the refrigerant is not charged, only charged oil particles will be adsorbed and gathered on the electric oil collector. When the oil particles accumulate to a certain amount, the oil particles will flow along the lubrication channel to the components to be lubricated, and lubricate the components to be lubricated. In this way, the separation of the refrigerant and the lubricating oil is realized, and at the same time, the lubricating oil also lubricates the components to be lubricated.

[0039] Through this embodiment, an electrostatic separation method is adopted, which can not only realize the separation of lubricating oil and refrigerant before compression of the pump body, effectively reduce the oil content of the compressor exhaust, but also ensure sufficient lubrication and oil supply to the lubricated components, thereby improving the oil supply rate.

[0040] Reference Figure 3 and Figure 4In one embodiment, the scroll compressor further includes a support assembly 4, the support assembly 4 includes a support 41 and a main bearing 42, the support 41 is provided with a main bearing chamber 413, the main bearing 42 is arranged in the main bearing chamber 413, and the element to be lubricated includes the main bearing 42; the lubrication passage includes a first lubrication passage provided on the support 41, the first lubrication passage is connected to the main bearing chamber 413, the electric oil collector includes a first electric oil collector provided on the first lubrication passage, the first electric oil collector is used to absorb charged oil particles, and the oil particles flow to the main bearing chamber 413 through the first lubrication passage. Specifically, the scroll compressor further includes a rotor assembly 2, a crankshaft 3, a support assembly 4, a moving disk assembly 5, a stator assembly 6, and an exhaust cover assembly 7 arranged in the housing 1, the exhaust cover assembly 7, the stator assembly 6 and the moving disk assembly 5 are arranged above the support assembly 4, and the crankshaft 3 is installed through the support assembly 4 and the rotor assembly 2. The support assembly 4 includes a support and a main bearing 42. A main bearing chamber 413 is provided at the center of the support 41. The main bearing 42 is placed in the main bearing chamber 413. The crankshaft 3 passes through the main bearing chamber 413 and is connected to the main bearing 42 in the main bearing chamber 413. The main bearing chamber 413 can also be used as a back pressure chamber of the scroll compressor to provide axial back pressure to the moving plate assembly 5 to ensure the stable operation of the compressor. The element to be lubricated includes the main bearing 42 located in the main bearing chamber 413, so the first lubrication channel is provided on the support 41 adjacent to the main bearing 42, and the first electrical oil collector is provided in the first lubrication channel. In order to guide the lubricating oil to the main bearing 42 for lubrication, the first lubrication channel is connected to the main bearing chamber 413. Then, the ionized mixture enters the shell 1 and fills the entire shell 1, and part of the ionized mixture enters the first lubrication channel on the bracket and is adsorbed and collected by the first oil collector. When the oil particles accumulate to a certain amount, the oil particles will flow along the first lubrication channel to the main bearing chamber 413, and lubricate the components to be lubricated in the main bearing chamber 413. While separating the refrigerant and the lubricating oil, the lubricating oil also lubricates the main bearing 42, thereby enhancing the lubrication effect of the compressor itself and ensuring the smooth operation of the compressor.

[0041] Reference Figure 4In this embodiment, the first electric oil collecting part includes a first positive oil collecting part 4112 and a first negative oil collecting part 4122, and the first positive oil collecting part 4112 and the first negative oil collecting part 4122 are arranged opposite to each other at intervals, wherein the first positive oil collecting part 4112 is configured to adsorb oil particles carrying negative charges, and the first negative oil collecting part 4122 is configured to adsorb oil particles carrying positive charges. Specifically, the first positive oil collecting part 4112 and the first negative oil collecting part 4122 are both electrode plate structures, the first positive oil collecting part 4112 is a positively charged electrode plate, and the first negative oil collecting part 4122 is a negatively charged electrode plate. The first positive oil collecting part 4112 and the first negative oil collecting part 4122 are parallel to each other and are arranged face to face. There is a certain distance between the two to facilitate the passage of the mixture, and an electric field can be generated between the first positive oil collecting part 4112 and the first negative oil collecting part 4122. Then, when the ionized mixture enters between the first positively charged oil collecting part 4112 and the first negatively charged oil collecting part 4122, according to Coulomb's law, like charges repel each other and unlike charges attract each other, and the positively charged oil particles are adsorbed and collected by the first negatively charged oil collecting part 4122, and the negatively charged oil particles are adsorbed and collected by the first positively charged oil collecting part 4112. In this way, all the positively charged oil particles and the negatively charged oil particles are collected, which reduces the oil content of the compressed refrigerant, increases the suction flow rate, and improves the cooling capacity.

[0042] Continue to refer to Figure 4In a specific embodiment, the bracket 41 includes a bracket upper plate 411 and a bracket lower plate 412, and the bracket upper plate 411 and the bracket lower plate 412 are arranged in an upper and lower interval, and the first lubrication channel is formed between the bracket upper plate 411 and the bracket lower plate 412, and the first lubrication channel includes a first upper lubrication channel 4111 provided on the bracket upper plate 411 and a first lower lubrication channel 4121 provided on the bracket lower plate 412, and the first upper lubrication channel 4111 and the first lower lubrication channel 4121 are both connected to the main bearing chamber 413; wherein, one of the first positive oil collecting portion 4112 and the first negative oil collecting portion 4122 is provided in the first upper lubrication channel 4111, and the other is provided in the first lower lubrication channel 4121. Specifically, the bracket is different from the traditional bracket. The bracket is an overall circular double-layer plate structure, including a bracket upper plate 411 and a bracket lower plate 412. The bracket upper plate 411 and the bracket lower plate 412 are layered up and down, and a certain distance is spaced between the two. The first lubrication channel is formed between the bracket upper plate 411 and the bracket lower plate 412. The main bearing chamber 413 is opened at the center of the bracket and is located between the bracket upper plate 411 and the bracket lower plate 412. Specifically, the first lubrication channel is composed of a first upper lubrication channel 4111 and a first lower lubrication channel 4121. The first upper lubrication channel 4111 is provided on the bracket upper plate 411, and the first lower lubrication channel 4121 is provided on the bracket lower plate 412. In order to guide the lubricating oil to the main bearing 42, the first upper lubrication channel 4111 is connected to the upper position of the main bearing chamber 413, and the first lower lubrication channel 4121 is connected to the lower position of the main bearing chamber 413. Both the first upper lubrication channel 4111 and the first lower lubrication channel 4121 are connected to the main bearing chamber 413. The first positive oil collector 4112 is fixed on the first upper lubrication channel 4111, and the first negative oil collector 4122 is fixed on the first lower lubrication channel 4121. An electric field is generated between the first positive oil collector 4112 and the first negative oil collector 4122. The mixture enters between the upper plate 411 and the lower plate 412 of the bracket from the circumference of the bracket, and the positively charged oil particles are adsorbed and collected by the first negatively charged oil collecting portion 4122, and after accumulating enough oil particles, they flow into the main bearing chamber 413 along the first lower lubrication channel 4121; the negatively charged oil particles are adsorbed and collected by the first positively charged oil collecting portion 4112, and after accumulating enough oil particles, they flow into the main bearing chamber 413 along the first upper lubrication channel 4111, thereby lubricating the main bearing 42 in the main bearing chamber 413, separating the lubricating oil, reducing the exhaust oil content, and improving the reliability and service life of the compressor.

[0043] Continue to refer to Figure 4Further, the first upper lubrication channel 4111 includes a first upper mounting groove 4111a and a first upper oil guide channel 4111b, the two ends of the first upper oil guide channel 4111b are respectively connected to the first upper mounting groove 4111a and the main bearing chamber 413, the first upper mounting groove 4111a is recessed upward from the lower end surface of the bracket upper plate 411, and the first positive oil collecting portion 4112 or the first negative oil collecting portion 4122 is provided in the first upper mounting groove 411 1a; The first lower lubrication channel 4121 includes a first lower mounting groove 4121a and a first lower oil guide channel 4121b, the two ends of the first lower oil guide channel 4121b are connected to the first lower mounting groove 4121a and the main bearing chamber 413 respectively, the first lower mounting groove 4121a is recessed downward from the upper end surface of the bracket lower plate 412, and the first positive oil collecting portion 4112 or the first negative oil collecting portion 4122 is arranged in the first lower mounting groove 4121a. Specifically, the lower end surface of the bracket upper plate 411 faces the upper end surface of the bracket upper plate 411, the first upper mounting groove 4111a is an annular groove opened on the lower end surface of the bracket upper plate 411, and the shape of the first positive oil collecting portion 4112 is adapted to the shape of the annular groove and is installed in the annular groove. Similarly, the first lower mounting groove 4121a is an annular groove provided on the upper end surface of the bracket lower plate 412, and the shape of the first negative charge oil collecting portion 4122 is adapted to the shape of the annular groove and is installed in the annular groove. Of course, it is understandable that the first upper mounting groove 4111a and the first lower mounting groove 4121a can also be other shapes and structures, which are not limited here. The first upper oil guide channel 4111b is a channel extending obliquely downward, one end of the first upper oil guide channel 4111b penetrates the groove wall of the first upper mounting groove 4111a, and the other end of the first upper oil guide channel 4111b penetrates the groove wall of the main bearing chamber 413. When enough oil particles accumulate, they will flow into the main bearing chamber 413 along the first upper oil guide channel 4111b under the action of gravity. Similarly, the first lower oil guide channel 4121b is a channel extending obliquely downward, one end of the first lower oil guide channel 4121b penetrates the groove wall of the first lower mounting groove 4121a, and the other end of the first lower oil guide channel 4121b penetrates the groove wall of the main bearing chamber 413. When enough oil particles accumulate, they flow into the main bearing chamber 413 along the first lower oil guide channel 4121b under the action of gravity. The first upper lubrication channel 4111 and the first lower lubrication channel 4121 of this structure are simple in structure, easy to process, and low in cost.

[0044] Reference Figure 1-Figure 4In one embodiment, the scroll compressor further comprises a crankshaft 3, a rotor assembly 2, a balancing block and a secondary bearing 23, wherein the crankshaft 3 is inserted through the rotor assembly 2 and the secondary bearing 23, the balancing block is arranged between the rotor assembly 2 and the secondary bearing 23, and the element to be lubricated comprises the secondary bearing 23; the lubrication passage comprises a second lubrication passage arranged on the balancing block and a third lubrication passage arranged on the crankshaft 3, the second lubrication passage is communicated with the third lubrication passage, the outlet of the third lubrication passage faces the secondary bearing 23, and the electric oil collector comprises a second electric oil collector arranged in the second lubrication passage, the second electric oil collector is used to absorb charged oil particles, and the oil particles flow to the secondary bearing 23 through the second lubrication passage and the third lubrication passage. Specifically, the crankshaft 3 is installed through the rotor assembly 2 and the bracket assembly 4, the top end of the crankshaft 3 is inserted into the main bearing chamber 413 and installed with the main bearing 42, and the bottom end of the crankshaft 3 is installed with the secondary bearing 23. The balancing block is installed on the rotor assembly 2, and is located between the rotor assembly 2 and the secondary bearing 23. The element to be lubricated includes a secondary bearing 23 located at the bottom end of the crankshaft 3. In order to provide lubrication for the secondary bearing 23, the second lubrication channel and the third lubrication channel are opened on the balance block and the crankshaft 3 adjacent to the secondary bearing 23. Specifically, the second lubrication channel is opened on the balance block, the second electrical oil collector is arranged in the second lubrication channel, the third lubrication channel is opened on the crankshaft 3, the second lubrication channel and the third lubrication channel are connected, the outlet of the third lubrication channel faces the inner side of the secondary bearing 23, and the secondary bearing 23 is sleeved on the outer side of the crankshaft 3 so that its inner side covers the outlet of the third lubrication channel. The ionized mixture enters the shell 1 and fills the entire shell 1. Part of the ionized mixture enters the second lubrication channel of the balance block and is adsorbed and collected by the second oil collector. When the oil particles accumulate to a certain amount, the oil particles will flow to the auxiliary bearing 23 along the second lubrication channel and the third lubrication channel in turn. The lubricating oil flows from the outlet of the third lubrication channel to the auxiliary bearing 23 to lubricate the auxiliary bearing 23 cavity. While realizing the separation of the refrigerant and the lubricating oil, the lubricating oil also lubricates the auxiliary bearing 23, thereby enhancing the lubrication effect of the compressor itself and ensuring the smooth operation of the compressor.

[0045] Reference Figure 5In this embodiment, the second electric oil collecting part includes a second positive oil collecting part 214 and a second negative oil collecting part 224, and the second positive oil collecting part 214 and the second negative oil collecting part 224 are arranged opposite to each other at intervals, wherein the second positive oil collecting part 214 is configured to adsorb oil particles carrying negative charges, and the second negative oil collecting part 224 is configured to adsorb oil particles carrying positive charges. Specifically, the second positive oil collecting part 214 and the second negative oil collecting part 224 are both electrode plate structures, the second positive oil collecting part 214 is a positively charged electrode plate, and the second negative oil collecting part 224 is a negatively charged electrode plate. The second positive oil collecting part 214 and the second negative oil collecting part 224 are parallel to each other and are arranged face to face. There is a certain distance between the two to facilitate the passage of the mixture, and an electric field can be generated between the second positive oil collecting part 214 and the second negative oil collecting part 224. Then, when the ionized mixture enters between the second positively charged oil collecting part 214 and the second negatively charged oil collecting part 224, according to the principle of interaction between charges, charges of the same kind repel each other and charges of different kinds attract each other, and the positively charged oil particles are adsorbed and collected by the second negatively charged oil collecting part 224, and the negatively charged oil particles are adsorbed and collected by the second positively charged oil collecting part 214. In this way, all the positively charged oil particles and the negatively charged oil particles are collected, which reduces the oil content of the compressed refrigerant, increases the suction flow rate, and improves the refrigeration capacity.

[0046] Continue to refer to Figure 5In a specific implementation, the balance block includes an upper balance block 21 and a lower balance block 22, and the upper balance block 21 and the lower balance block 22 are arranged with an upper and lower interval. The second lubrication channel is formed between the upper balance block 21 and the lower balance block 22, and the second lubrication channel includes a second upper lubrication channel 211 provided on the upper balance block 21 and a second lower lubrication channel 221 provided on the lower balance block 22, and the second upper lubrication channel 211 and the second lower lubrication channel 221 are both connected to the third lubrication channel; wherein, one of the second positive oil collecting portion 214 and the second negative oil collecting portion 224 is provided in the second upper lubrication channel 211, and the other is provided in the second lower lubrication channel 221. Specifically, the balancing block of the present embodiment can be a secondary balancing block or a main balancing block. The balancing block is different from the traditional solid block shape. The balancing block is composed of an upper balancing block 21 and a lower balancing block 22. The upper balancing block 21 and the lower balancing block 22 are both crescent-shaped block structures. The upper balancing block 21 and the lower balancing block 22 are arranged below the rotor assembly 2. The inner sides of the upper balancing block 21 and the lower balancing block 22 are close to the crankshaft 3. The upper balancing block 21 and the lower balancing block 22 are arranged in layers up and down, and there is a certain distance between them. Specifically, the second lubrication channel is composed of a second upper lubrication channel 211 and a second lower lubrication channel 221. The second upper lubrication channel 211 is opened on the upper balance block 21, and the second lower lubrication channel 221 is opened on the lower balance block 22. The outlet of the second upper lubrication channel 211 faces the inner side of the upper balance block 21, and the outlet of the second lower lubrication channel 221 faces the inner side of the lower balance block 22. The inner sides of the upper balance block 21 and the lower balance block 22 are arranged close to the crankshaft 3, so that the outlets of the second upper lubrication channel 211 and the outlets of the second lower lubrication channel 221 are both aligned with the third lubrication channel, thereby making the second upper lubrication channel 211 and the second lower lubrication channel 221 both connected to the third lubrication channel. The second positive oil collector 214 and the second negative oil collector 224 are respectively fixed on the second upper lubrication channel 211 and the second lower lubrication channel 221, and an electric field is generated between the second positive oil collector 214 and the second negative oil collector 224. The mixture enters between the upper balance block 21 and the lower balance block 22 from the circumference of the balance block, and the positively charged oil particles are adsorbed and collected by the second negatively charged oil collecting portion 224, and after accumulating enough oil particles, they flow along the second lower lubrication channel 221 to the third lubrication channel of the crankshaft 3, and flow to the auxiliary bearing 23 through the third lubrication channel to lubricate the auxiliary bearing 23. The negatively charged oil particles are adsorbed and collected by the second positively charged oil collecting portion 214, and after accumulating enough oil particles, they flow along the second upper lubrication channel 211 to the third lubrication channel of the crankshaft 3, and flow to the auxiliary bearing 23 through the third lubrication channel to lubricate the auxiliary bearing 23, thereby separating the lubricating oil, reducing the exhaust oil content, and improving the reliability and service life of the compressor.

[0047] Reference Figure 6 and Figure 7Further, the second upper lubrication channel 211 includes a second upper mounting groove 211a and an upper oil guide hole 211b, and the two ends of the upper oil guide hole 211b are respectively connected to the second upper mounting groove 211a and the third lubrication channel, and the second upper mounting groove 211a is recessed upward from the lower end surface of the upper balance block 21, and the second positive oil collecting portion 214 or the second negative oil collecting portion 224 is arranged in the second upper mounting groove 211a; the second lower lubrication channel 221 includes a second lower mounting groove 221a and a lower oil guide hole 221b, and the two ends of the lower oil guide hole 221b are respectively connected to the second lower mounting groove 221a and the third lubrication channel, and the second lower mounting groove 221a is recessed downward from the upper end surface of the lower balance block 22, and the second positive oil collecting portion 214 or the second negative oil collecting portion 224 is arranged in the second lower mounting groove 221a. Specifically, the lower end face of the upper balance block 21 faces the upper end face of the lower balance block 22, and the second upper mounting groove 211a is an arc-shaped groove opened on the lower end face of the upper balance block 21, and the shape of the second positive oil collecting portion 214 matches the shape of the arc-shaped groove and is installed in the arc-shaped groove. Similarly, the second lower mounting groove 221a is an arc-shaped groove opened on the upper end face of the lower balance block 22, and the shape of the second negative oil collecting portion 224 matches the shape of the arc-shaped groove and is installed in the arc-shaped groove. The second upper lubrication channel 211 also includes an arc-shaped upper side auxiliary flow groove 213 and an upper side main flow groove 212 respectively opened on the inner and outer sides of the second upper mounting groove 211a, and the arc length of the arc-shaped upper side auxiliary flow groove 213 located on the inner side is smaller than the arc-shaped upper side main flow groove 212 located on the outer side. The mixture can enter from the inner upper secondary flow groove 213 or the outer upper main flow groove 212, and then be adsorbed and collected by the second positive oil collecting portion 214 on the middle second upper mounting groove 211a. The upper oil guide hole 211b is a channel extending obliquely downward, one end of the upper oil guide hole 211b penetrates the groove wall of the second upper mounting groove 211a, and the other end of the upper oil guide hole 211b penetrates the inner side wall of the upper balance block 21. The upper oil guide hole 211b serves as the outlet of the second upper lubrication channel 211. When the upper balance block 21 is installed, the upper oil guide hole 211b is aligned with the third lubrication channel on the crankshaft 3, so that the lubricating oil can flow from the second upper lubrication channel 211 into the third lubrication channel. Similarly, the second lower lubrication channel 221 also includes an arc-shaped lower side auxiliary flow groove 223 and a lower side main flow groove 222 respectively provided on the inner side and the outer side of the second lower mounting groove 221a, and the arc length of the arc-shaped lower side auxiliary flow groove 223 located on the inner side is smaller than the arc-shaped lower side main flow groove 222 located on the outer side. The mixture can enter from the inner lower side auxiliary flow groove 223 or from the outer lower side main flow groove 222, and thus be adsorbed and collected by the second positive electric oil collecting portion 214 under the middle second lower mounting groove 221a.The lower oil guide hole 221b is a channel extending obliquely downward, one end of the lower oil guide hole 221b penetrates the groove wall of the second lower mounting groove 221a, and the other end of the lower oil guide hole 221b penetrates the inner side wall of the lower balance block 22. The lower oil guide hole 221b serves as the outlet of the second lower lubrication channel 221. When the lower balance block 22 is installed, the lower oil guide hole 221b is aligned with the third lubrication channel under the crankshaft 3, so that the lubricating oil can flow from the second lower lubrication channel 221 to the third lubrication channel. The second upper lubrication channel 211 and the second lower lubrication channel 221 of this structure are simple in structure, easy to process, and low in cost.

[0048] Reference Figure 5 and Figure 8In this embodiment, the third lubrication channel includes a first radial connecting flow channel 31, a second radial connecting flow channel 32, an axial oil guide channel 33 and a radial oil outlet channel 34. The axial oil guide channel 33 is opened along the axial direction of the crankshaft 3. The first radial connecting flow channel 31 extends along the radial direction of the crankshaft 3 and its two ends are respectively connected to the axial oil guide channel 33 and the upper oil guide hole 211b. The second radial connecting flow channel 32 extends along the radial direction of the crankshaft 3 and its two ends are respectively connected to the axial oil guide channel 33 and the lower oil guide hole 221b. The radial oil outlet channel 34 extends along the radial direction of the crankshaft 3, and one end is connected to the axial oil guide channel 33, and the other end radially penetrates the outer wall of the crankshaft 3 to form the outlet of the third lubrication channel. Specifically, the third lubrication channel is opened at the bottom end of the crankshaft 3, and the axial guide oil channel 33 extends axially upward from the bottom end surface of the crankshaft 3. A plug 35 is provided at the end of the axial guide oil channel 33 close to the bottom end of the crankshaft 3 to block the axial guide oil channel 33 and prevent lubricating oil leakage. A first radial connecting flow channel 31 and a second radial connecting flow channel 32 arranged along the radial direction of the crankshaft 3 are opened on the side of the axial guide oil channel 33 close to the balance block. The first radial connecting flow channel 31 is used to connect the axial guide oil channel 33 and the second upper lubrication channel 211, and the second radial connecting flow channel 32 is used to connect the axial guide oil channel 33 and the second lower lubrication channel 221. The first radial connecting flow channel 31 and the second radial connecting flow channel 32 are both hole sections extending obliquely downward. The end of the first radial connecting flow channel 31 connected to the axial guide oil channel 33 is the low side, and the end of the first radial connecting flow channel 31 connected to the upper oil guide hole 211b of the second upper lubrication channel 211 is the high side. The end of the second radial connecting flow channel 32 connected to the axial oil guide channel 33 is the low side, and the end of the second radial connecting flow channel 32 connected to the lower oil guide hole 221b of the second lower lubrication channel 221 is the high side. When enough oil particles are accumulated, under the action of gravity, the lubricating oil flows out from the upper oil guide hole 211b and the lower oil guide hole 221b, and all flows into the axial oil guide channel 33 for collection. The axial oil guide channel 33 guides the lubricating oil to the auxiliary bearing 23 through the radial oil outlet channel 34. The radial oil outlet channel 34 also extends in the radial direction of the crankshaft 3, but the radial oil outlet channel 34 extends radially toward the side away from the balance block. The end of the radial oil outlet channel 34 connected to the axial oil guide channel 33 is lower than the end of the first radial connecting flow channel 31 and the second radial connecting flow channel 32 connected to the axial oil guide channel 33. That is, the radial oil outlet passage 34 is at the lowest point, so that the lubricating oil will flow out from the radial oil outlet passage 34 to the inner side of the auxiliary bearing 23 under the action of gravity, thereby lubricating the auxiliary bearing 23. The third lubricating passage of this structure is simple in structure, easy to process and low in cost.

[0049] In other embodiments, filters or porous media may be provided in the first lubrication channel, the second lubrication channel, and the third lubrication channel to filter out impurities.

[0050] To summarize, the refrigerant and oil particles are separated by the Coulomb force of the positive and negative charges mentioned above, and the compressor performs pre-separation of the lubricating oil and the refrigerant during the intake process, i.e. before the compression between the moving disk assembly 5 and the stationary disk assembly 6. The compressed gas is still further separated from the lubricating oil and the refrigerant by the oil separator 72 on the exhaust cover 71 of the exhaust assembly and then discharged from the exhaust port 73, thereby effectively reducing the oil content of the exhaust gas.

[0051] The embodiment of the present invention further provides an air conditioner, comprising the scroll compressor of the above embodiment. The scroll compressor has been described in detail in the above embodiment, and for the sake of brevity of the description, it will not be described again here.

[0052] Through this embodiment, an ionization channel 12 containing a charged tungsten wire is provided at the compressor air inlet 11, so that the oil particles in the incoming refrigerant and lubricating oil mixture are positively or negatively charged, and the bracket and auxiliary balance block of the compressor have opposite end faces, and an electric oil collector is provided on the opposite end faces to absorb the charged oil particles. When the oil particles are sufficiently absorbed, they flow to the lubrication channel to lubricate the main bearing 42 and the auxiliary bearing 23. The oil content of the refrigerant entering the pump body is reduced, the suction flow rate is increased, and the compression efficiency of the compressor is improved. In addition, the oil separated from the refrigerant is supplied to the back pressure cavity through the lubrication channel, and the main bearing 42 on the back pressure cavity and the auxiliary bearing 23 on the housing 1 are lubricated, thereby reducing oil loss and effectively improving the performance and reliability of the whole machine.

[0053] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A scroll compressor, characterized in that: include: The housing is provided with an air inlet for the mixture of refrigerant and lubricating oil to enter, and the air inlet is provided with an ionization channel, and the ionization channel is used to ionize the mixture so that the oil particles in the lubricating oil carry positive or negative charges; A component to be lubricated is disposed in the housing; An electrostatic separation component, comprising a lubrication channel and an electric oil collector, wherein the lubrication channel is connected to the element to be lubricated, the electric oil collector is arranged in the lubrication channel, and the electric oil collector is used to absorb charged oil particles, and the oil particles flow to the element to be lubricated through the lubrication channel; The scroll compressor also includes a crankshaft, a rotor assembly, a balancing block and a secondary bearing, the crankshaft is passed through the rotor assembly and the secondary bearing, the balancing block is arranged between the rotor assembly and the secondary bearing, and the element to be lubricated includes the secondary bearing; the lubrication channel includes a second lubrication channel arranged on the balancing block and a third lubrication channel arranged on the crankshaft, the second lubrication channel is connected to the third lubrication channel, the outlet of the third lubrication channel faces the secondary bearing, the electric oil collecting member includes a second electric oil collecting member arranged in the second lubrication channel, the second electric oil collecting member includes a second positive oil collecting part and a second negative oil collecting part, the second positive oil collecting part and the second negative oil collecting part are arranged opposite to each other at an interval, and the second electric oil collecting member is used to absorb charged oil particles, and the oil particles flow to the secondary bearing through the second lubrication channel and the third lubrication channel.

2. The scroll compressor according to claim 1, characterized in that: It also includes a bracket assembly, the bracket assembly includes a bracket and a main bearing, the bracket is provided with a main bearing chamber, the main bearing is arranged in the main bearing chamber, and the element to be lubricated includes the main bearing; The lubrication channel includes a first lubrication channel arranged on the bracket, the first lubrication channel is connected to the main bearing chamber, the electric oil collector includes a first electric oil collector arranged on the first lubrication channel, the first electric oil collector is used to absorb charged oil particles, and the oil particles flow to the main bearing chamber through the first lubrication channel.

3. The scroll compressor according to claim 2, characterized in that: The first oil collecting part includes a first positive oil collecting portion and a first negative oil collecting portion, and the first positive oil collecting portion and the first negative oil collecting portion are arranged opposite to each other with a gap, wherein the first positive oil collecting portion is configured to absorb oil particles carrying negative charges, and the first negative oil collecting portion is configured to absorb oil particles carrying positive charges.

4. The scroll compressor according to claim 3, characterized in that: The bracket includes an upper plate and a lower plate, and the upper plate and the lower plate are arranged in an upper and lower interval. The first lubrication channel is formed between the upper plate and the lower plate, and the first lubrication channel includes a first upper lubrication channel arranged on the upper plate of the bracket and a first lower lubrication channel arranged on the lower plate of the bracket, and the first upper lubrication channel and the first lower lubrication channel are both connected to the main bearing chamber; wherein, one of the first positive oil collecting portion and the first negative oil collecting portion is arranged in the first upper lubrication channel, and the other is arranged in the first lower lubrication channel.

5. The scroll compressor according to claim 4, characterized in that: The first upper lubrication channel comprises a first upper mounting groove and a first upper oil guide channel, the two ends of the first upper oil guide channel are respectively connected to the first upper mounting groove and the main bearing chamber, the first upper mounting groove is recessed upward from the lower end surface of the bracket upper plate, and the first positive oil collecting portion or the first negative oil collecting portion is arranged in the first upper mounting groove; and / or, The first lower lubrication channel includes a first lower mounting groove and a first lower oil guide channel, both ends of the first lower oil guide channel are respectively connected to the first lower mounting groove and the main bearing chamber, the first lower mounting groove is recessed downward from the upper end surface of the lower plate of the bracket, and the first positive oil collecting portion or the first negative oil collecting portion is arranged in the first lower mounting groove.

6. The scroll compressor according to any one of claims 1 to 5, characterized in that: The second positively charged oil collecting portion is configured to absorb oil particles carrying negative charges, and the second negatively charged oil collecting portion is configured to absorb oil particles carrying positive charges.

7. The scroll compressor according to claim 6, characterized in that: The balancing block includes an upper balancing block and a lower balancing block, and the upper balancing block and the lower balancing block are arranged with an upper and lower interval. The second lubrication channel is formed between the upper balancing block and the lower balancing block. The second lubrication channel includes a second upper lubrication channel arranged on the upper balancing block and a second lower lubrication channel arranged on the lower balancing block. Both the second upper lubrication channel and the second lower lubrication channel are connected to the third lubrication channel; wherein, one of the second positive oil collecting portion and the second negative oil collecting portion is arranged on the second upper lubrication channel, and the other is arranged on the second lower lubrication channel.

8. The scroll compressor according to claim 7, characterized in that: The second upper lubrication channel comprises a second upper mounting groove and an upper oil guide hole, the two ends of the upper oil guide hole are respectively connected to the second upper mounting groove and the third lubrication channel, the second upper mounting groove is recessed upward from the lower end surface of the upper balance block, and the second positive oil collecting portion or the second negative oil collecting portion is arranged in the second upper mounting groove; and / or, The second lower lubrication channel includes a second lower mounting groove and a lower oil guide hole, both ends of the lower oil guide hole are respectively connected to the second lower mounting groove and the third lubrication channel, the second lower mounting groove is recessed downward from the upper end surface of the lower balance block, and the second positive oil collecting portion or the second negative oil collecting portion is arranged in the second lower mounting groove.

9. The scroll compressor according to claim 8, characterized in that: The third lubrication channel includes a first radial connecting flow channel, a second radial connecting flow channel, an axial oil guide channel and a radial oil outlet channel. The axial oil guide channel is opened along the axial direction of the crankshaft. The first radial connecting flow channel extends radially along the crankshaft and its two ends are respectively connected to the axial oil guide channel and the upper oil guide hole. The second radial connecting flow channel extends radially along the crankshaft and its two ends are respectively connected to the axial oil guide channel and the lower oil guide hole. The radial oil outlet channel extends radially along the crankshaft, and one end is connected to the axial oil guide channel, and the other end radially penetrates the outer wall of the crankshaft to form an outlet of the third lubrication channel.

10. An air conditioner, characterized in that: Comprising a scroll compressor as described in any one of claims 1-9.

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